Rosemount 890 User manual

Rosemount Analytical
MODEL 890
UV ANALYZER
INSTRUCTION MANUAL
748460-A

NOTICE
The information contained in this document is subject to change without notice.
Manual Part Number 748460-A
January 2000
Printed in U.S.A.
Rosemount Analytical Inc.
4125 East La Palma Avenue
Anaheim, California 92807-1802
Teflon® and Viton® are registered trademarks of E.I. duPont de Nemours and Co., Inc.
Suprasil II® is a registered trademark of Heraeus Amersil Inc.
Pyrex® is a registered trademark of Corning Glass Works.
SNOOP® is a registered trademark of NUPRO Co.

CONTENTS
I
748460-A Rosemount Analytical
January 2000
PREFACE
Safety Summary.................................................................................................P-1
Specifications - General......................................................................................P-4
Specifications - Sample......................................................................................P-4
Specifications - Physical.....................................................................................P-5
Specifications - Options......................................................................................P-5
Customer Service, Technical Assistance and Field Service...............................P-6
Returning Parts to the Factory............................................................................P-6
Training ......................................................................................................P-6
Documentation....................................................................................................P-6
Compliances ......................................................................................................P-7
SECTION 1. INTRODUCTION
1.1 General Description..................................................................................1-1
1.2 Available Options......................................................................................1-3
SECTION 2. UNPACKING AND INSTALLATION
2.1 Check for Shipping Damage.....................................................................2-1
2.2 Location....................................................................................................2-1
2.3 Voltage Requirements..............................................................................2-1
2.4 Electrical Connections..............................................................................2-2
2.4.1 Line Power Connections.............................................................2-2
2.4.2 Recorder Connections ................................................................2-3
2.5 SAMPLE INLET/OUTLET CONNECTIONS..............................................2-4
2.6 CALIBRATION GAS REQUIREMENTS ...................................................2-5
2.7 SAMPLE HANDLING SYSTEM................................................................2-5
2.8 LEAK TEST PROCEDURE.......................................................................2-5
2.9 SAMPLE FLOW RATE.............................................................................2-6
2.10 OPTION BOARDS....................................................................................2-6
2.10.1 Alarm Connections....................................................................2-7
2.10.2 Calibration and Gas Control Connections.................................2-7
2.10.3 Auto Zero/Span Connections....................................................2-8

CONTENTS
II 748460-ARosemount Analytical January 2000
2.10.4 Remote Input/Output Connections ........................................... 2-9
2.11 Ordering Option Kits............................................................................... 2-10
SECTION 3. INITIAL STARTUP AND CALIBRATION
3.1 Leak Test ................................................................................................. 3-1
3.2 Power Verification.................................................................................... 3-1
3.3 Software/Countdown................................................................................ 3-2
3.4 Front Panel Indicators and Controls......................................................... 3-2
3.4.1 Display ..................................................................................... 3-2
3.4.2 Function Keys............................................................................. 3-2
3.4.3 User Programmable Keys .......................................................... 3-4
3.4.4 Run Mode Display...................................................................... 3-5
3.4.5 General Display Information....................................................... 3-5
3.5 Accessing Mode Displays ........................................................................ 3-6
3.6 Security Code........................................................................................... 3-8
3.7 Range Parameters................................................................................... 3-9
3.8 Analyzer Diagnostics................................................................................ 3-11
3.9 Zero Calibration........................................................................................ 3-11
3.10 Zero Calibration for the Analyzer with the Calibration Gas
Control Option .............................................................................. 3-13
3.11 Span Calibration....................................................................................... 3-13
3.12 Span Calibration for the Analyzer with the Calibration Gas
Control Option .............................................................................. 3-14
3.13 Linearization............................................................................................. 3-14
3.14 Alarm ...................................................................................................... 3-19
3.14.1 STATUS Display....................................................................... 3-21
3.15 Current Output ......................................................................................... 3-22
3.16 Auto Zero/Span Option ............................................................................ 3-22
3.17 Remote Range input/Output Option......................................................... 3-26
3.18 Interference Balance................................................................................ 3-28
SECTION 4. ROUTINE OPERATION AND THEORY
4.1 Routine Operation.................................................................................... 4-1
4.2 Recommended Calibration Frequency..................................................... 4-1
4.3 Shutdown................................................................................................. 4-1
4.4 Detection System Theory......................................................................... 4-1
SECTION 5. TROUBLESHOOTING
5.1 Error Code Summary............................................................................... 5-1
5.2 Iris Balance Adjustment ........................................................................... 5-2
5.3 Voltage Checks........................................................................................ 5-2
5.4 Digital GAIN Adjustment .......................................................................... 5-2
5.5 Case Heater............................................................................................. 5-3
5.6 ERL Error Message.................................................................................. 5-3

CONTENTS
iii
January 2000 Rosemount Analytical
748460-A
SECTION 6. ROUTINE SERVICING
6.1 Cell Removal, Cleaning and Replacement ...............................................6-1
6.2 Lamp Replacement...................................................................................6-3
6.2.1 Lamp Realignment......................................................................6-7
6.3 Cleaning Optical Components..................................................................6-9
6.3.1 Spectrally Selective Mirrors.........................................................6-9
6.3.2 Beam Splitter/Focusing Mirrors...................................................6-9
6.3.3 Source Envelope.........................................................................6-9
6.3.4 End Caps....................................................................................6-9
6.4 Electronic Circuitry....................................................................................6-10
6.4.1 Power Supply Board ...................................................................6-10
6.4.2 Signal Board ...............................................................................6-10
6.4.3 Preamplifier Board ......................................................................6-10
6.4.4 Adapter Board.............................................................................6-10
6.4.5 Micro Board.................................................................................6-11
6.4.6 Case Heater Temperature Control..............................................6-11
6.4.7 Dual Alarm/Calibration Gas Control Board (Option)....................6-11
6.4.8 Isolated Remote Range I/O Board (Option)................................6-11
6.4.9 Auto Zero/Span Board (Option) ..................................................6-11
SECTION 7. REPLACEMENT PARTS
7.1 CIRCUIT BOARD REPLACEMENT POLICY............................................7-1
7.2 SELECTED REPLACEMENT PARTS......................................................7-1
7.3 LAMP REPLACEMENT............................................................................7-2
DATA SHEET
GENERAL PRECAUTIONS FOR STORING AND HANDLING HIGH PRESSURE GAS CYLINDERS
WARRANTY
FIELD SERVICE AND REPAIR FACILITIES

CONTENTS
IV 748460-ARosemount Analytical January 2000
FIGURES
1-1 Model 890 Analyzer................................................................................. 1-1
1-2 Model 890 Optical Bench......................................................................... 1-2
2-1 Power Supply Board................................................................................ 2-2
2-2 Cable Gland Connection.......................................................................... 2-3
2-3 Calibration Gas Control and Alarm Connections...................................... 2-7
2-4 Auto Zero/Span Connections................................................................... 2-8
2-5 Remote Input/Output Connections........................................................... 2-9
3-1 Model 890 Adjustments ........................................................................... 3-1
3-2 Model 890 Keypad................................................................................... 3-2
3-3 Run Mode Display.................................................................................... 3-5
3-4 Logic Flow Chart...................................................................................... 3-7
3-5 Security Mode.......................................................................................... 3-8
3-6 Range Mode ............................................................................................ 3-9
3-7 Diagnostics Mode .................................................................................... 3-12
3-8 Linearization Mode................................................................................... 3-15
3-9 Typical Application Linearization Curve ................................................... 3-16
3-10 Concentration Curve................................................................................ 3-18
3-11 Curve, Normalized................................................................................... 3-18
3-12 Alarm Option............................................................................................ 3-20
3-13 Status Display.......................................................................................... 3-21
3-14 Current Output Mode............................................................................... 3-22
3-15 Auto Zero/Span........................................................................................ 3-25
3-16 Remote Input/Output................................................................................ 3-26
4-1 Model 890 Timing Diagram...................................................................... 4-2
6-1 Optical Bench........................................................................................... 6-2
6-2 Sample Cell Assembly............................................................................. 6-3
6-3. Collector Block (Exploded View).............................................................. 6-5
6-4 Detector Block (Exploded View)............................................................... 6-6
6-5 Lamp Assembly 655000 .......................................................................... 6-7
6-6. Lampl Alignment...................................................................................... 6-8
7-1 Model 890 Component Locations ............................................................ 7-3
7-2 Optical Bench - Sensor Locations............................................................ 7-4
7-3 UV Lamp Life vs. Intensity ....................................................................... 7-4
TABLES
3-1 Linearization Coefficients, Standard Ranges........................................... 3-16
3-2 Remote Range I/O Bit Designation.......................................................... 3-27
3-3 Remote Range I/O Binary and Decimal Bit Coding.................................. 3-27
5-1 Error Code Summary............................................................................... 5-1
6-1 Jumper Configurations for Options .......................................................... 6-12

CONTENTS
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January 2000 Rosemount Analytical
748460-A
DRAWINGS (LOCATED IN REAR OF MANUAL)
623782 Schematic Diagram, Micro Board
624127 Schematic Diagram, Adaptor Board
624204 Schematic Diagram, Dual Alarm/Fail Safe Alarm
624251 Schematic Diagram, Remote Control
624599 Scheamtic Diagram, Auto/Zero Span
652687 Schematic Diagram, Signal Board SO2
652715 Diagram, Electrical Interconnect SO2
652807 Schematic Diagram, Power Supply Board
652857 Schematic Diagram, Preamplifier Board SO2
654853 Installation Drawing, Model 890
656137 Schematic Diagram, Signal Board Cl2
656138 Schematic Diagram, Preamplifier Board Cl2
656911 Diagram, Electrical Interconnect Cl2

CONTENTS
VI 748460-ARosemount Analytical January 2000
NOTES

PREFACE
P-1
January 2000 Rosemount Analytical
748460-A
SAFETY SUMMARY
To avoid explosion, loss of life, personal injury and damage to this equipment and on-site
property, all personnel authorized to install, operate and service the Model 890 Analyzer
should be thoroughly familiar with and strictly follow the instructions in this manual. Save
these instructions.
If this equipment is used in a manner not specified in these instructions, protective
systems may be impaired.
DANGER is used to indicate the presence of a hazard which will cause severe
personal injury, death, or substantial property damage if the warning is ignored.
WARNING is used to indicate the presence of a hazard which can cause severe
personal injury, death, or substantial property damage if the warning is ignored.
CAUTION is used to indicate the presence of a hazard which will or can cause minor
personal injury or property damage if the warning is ignored.
NOTE is used to indicate installation, operation or maintenance information which is
important but not hazard-related.
Do not operate without doors and covers secure. Servicing requires access to
live parts which can cause death or serious injury. Refer servicing to qualified
personnel.
For safety and proper performance this instrument must be connected to a
properly grounded three-wire source of power.
Alarm and zero/span switching relay contacts wired to separate power sources
must be disconnected before servicing.
This instrument is shipped from the factory set up to operate on 115 volt, 50/60
Hz electric power. For operation on 230 volt, 50/60 Hz power, see Section 2.3 for
modifications.
WARNING: ELECTRICAL SHOCK HAZARD

PREFACE
Rosemount Analytical January 2000 748460-A
P-2
This analyzer is of a type capable of analysis of sample gases which may be
flammable. If used for analysis of such gases, the instrument must be protected
by a continuous dilution purge system in accordance with Standard ANSI/NFPA
496-1989, Chapter 8.
If explosive gases are introduced into this analyzer, the sample containment
system must be carefully leak-checked upon installation and before initial
startup, during routine maintenance and any time the integrity of the sample
containment system is broken, to ensure the system is in leak-proof condition.
Leak-check instructions are provided in Section 2.8.
Internal leaks resulting from failure to observe these precautions could result in
an explosion causing death, personal injury or property damage.
Tampering or unauthorized substitution of components may adversely affect
safety of this product. Use only factory documented components for repair.
Ultraviolet light from the source lamp can cause permanent eye damage. Do not
look at the UV source for prolonged periods. Use of UV filtering glasses is
recommended.
This analyzer requires periodic calibration with known zero and standard gases.
See General Precautions for Handling and Storing High Pressure Cylinders, at
the rear of this manual.
WARNING: POSSIBLE EXPLOSION HAZARD
WARNING: PARTS INTEGRITY
WARNING: INTERNAL ULTRAVIOLET LIGHT HAZARD
WARNING: HIGH PRESSURE GAS CYLINDERS

PREFACE
January 2000 Rosemount Analytical
748460-A P-3
This instrument measures toxic gases. Ensure gas lines are leak-free and
properly vented. Inhalation of toxic gases is highly dangerous and could result
in death.
Also, exhaust gas from this instrument is toxic and equally dangerous. Exhaust
must be connected either to its original source or an appropriate outside vent
using ¼-inch (6mm) tubing minimum.
This instrument’s internal pullout chassis is equipped with a safety stop latch
located on the left side of the chassis.
When extracting the chassis, verify that the safety latch is in its proper (counter-
clockwise) orientation.
If access to the rear of the chassis is required, the safety stop may be
overridden by lifting the latch; however, further extraction must be done very
carefully to insure the chassis does not fall out of its enclosure.
If the instrument is located on top of a table or bench near the edge, and the
chassis is extracted, it must be supported to prevent toppling.
Failure to observe these precautions could result in personal injury and/or
damage to the product.
WARNING: TOXIC GAS HAZARD
CAUTION: TOPPLING HAZARD

PREFACE
Rosemount Analytical January 2000 748460-A
P-4
SPECIFICATIONS - GENERAL
RANGE (STD) (FULLSCALE)0 to 50, 0 to 5000 ppm SO2 at atmospheric pressure
0 to 100 to 0 to 5000 ppm Cl2 at atmospheric pressure
OPERATING TEMPERATURE SO2applications: 32°F to 104°F (0°C to 40°C)
Cl2applications: 59°F to 95°F (15°C to 35°C)
REPEATABILITY ≤1% of fullscale
ZERO DRIFT1SO2: ±2% of fullscale per week
Cl2: ±2% of fullscale per 24 hours
SPAN DRIFT1SO2: ±2% of fullscale per week
Cl2: ±2% of fullscale per 24 hours
NOISE ≤1% of fullscale
RESPONSE TIME
(ELECTRONIC)Variable, 90% of fullscale in 0.5 sec. to 20 sec, field
selectable (application dependent)
SENSITIVITY SO2: ≤0.1 ppm
Cl2: ≤0.2 ppm
INTERFERENT REJECTION Discrimination ratio for NO2is 1000:1 for SO2applications
ANALOG OUTPUT Standard: 0 to 5 VDC and 0 to 20 mA/4 to 20 mA DC,
isolated (maximum load 700 ohms)
LINEARIZATION Keypad entered coefficients for linearizing 1, 2 or (all) 3
ranges
POWER REQUIREMENTS 115/230 VAC ±10%, 50/60 Hz, 350 Watts
SPECIFICATIONS - SAMPLE
SAMPLE CELL 12.0 inches (305 mm) long, 110 cc volume
MATERIALS IN CONTACT WITH SAMPLE
WINDOWS Suprasil II
CELLS Pyrex
TUBING FEP Teflon
FITTINGS 316 Stainless Steel
O-RINGS Viton-A
SAMPLE PRESSURE Maximum 10 psig (69 kPa)
1. Performance specifications based on ambient temperature shifts of less than 20°Fahrenheit (11°Celsius) per hour.

PREFACE
January 2000 Rosemount Analytical
748460-A P-5
SPECIFICATIONS - PHYSICAL
ENCLOSURE General purpose for installation in weather-protected area.
Optional purge kit per Type Z, ANSI/NFPA 496-19931
DIMENSIONS 8.7 x 19 x 24 inches (221 x 483 x 610 mm) H x W x D
WEIGHT 65 lbs. (30 kg)
SPECIFICATIONS - OPTIONS
ALARM 2Two single point, field programmable high or low,
deadband up to 20% of fullscale
ALARM RELAY
CONTACTS Two Form C contact rated 3A, 125/250 VAC or 5A, 30 VDC
(resistive)
CALIBRATION GAS CONTROL Two front panel actuated contact closures
RELAY OUTPUTS Two Form C contact rated 3A, 125/250 VAC or 5A, 30 VDC
(resistive)
AUTO ZERO/SPAN Four form C contact closures, rated 3A, 125/250 VAC or
5A, 30 VDC (resistive), field programmable frequency and
duration of closure
RELAY OUTPUTS
Two form A contact closures for indication of insufficient
zero and span adjustment, rated (resistive load):
Max. switching power: 10 Watts
Max. switching voltage: 30 VDC
Max. switching current: 0.5 A
REMOTE INPUT/OUTPUT Three remotely changeable ranges with positive
identification.
RANGE CHANGE Binary or decimal, field selectable.
AUTO ZERO/SPAN Auto Cal request and status.
RELAY OUTPUTS
Eight form A contact rated (resistive load):
Max. switching power: 10 Watts
Max. switching voltage: 30 VDC
Max. switching current: 0.5 A
INPUTS Eight optical couplers
INPUT RANGE +5 VDC to +24 VDC
1 When installed with user-supplied components, meets requirements for Class I, Division 2 locations per National
Electrical Code (ANSI/NFPA 70) for analyzers sampling nonflammable gases. Analyzers sampling flammable gases
must be protected by a continuous dilution purge system in accordance with Standard ANSI/NFPA 496-1993, Chapter 6.
Consult factory for recommendations.
2 Fail-safe jumper configuration.

PREFACE
Rosemount Analytical January 2000 748460-A
P-6
CUSTOMER SERVICE, TECHNICAL ASSISTANCE AND FIELD SERVICE
For order administration, replacement parts, application assistance, on-site or factory
repair, service or maintenance contract information, contact:
Rosemount Analytical Inc.
Process Analytical Division
Customer Service Center
1-800-433-6076
RETURNING PARTS TO THE FACTORY
Before returning parts, contact the Customer Service Center and request a Returned
Materials Authorization (RMA) number. Please have the following information when
you call: Model Number, Serial Number, and Purchase Order Number or Sales Order
Number.
Prior authorization by the factory must be obtained before returned materials will be
accepted. Unauthorized returns will be returned to the sender, freight collect.
When returning any product or component that has been exposed to a toxic, corrosive
or other hazardous material or used in such a hazardous environment, the user must
attach an appropriate Material Safety Data Sheet (MSDS) or a written certification that
the material has been decontaminated, disinfected and/or detoxified.
Return to:
Rosemount Analytical Inc.
4125 East La Palma Avenue
Anaheim, California 92807-1802
USA
TRAINING
A comprehensive Factory Training Program of operator and service classes is
available. For a copy of the Current Operator and Service Training Schedule contact
the Technical Services Department at:
Rosemount Analytical Inc.
Phone: [phone]
FAX: [phone]
DOCUMENTATION
The following Model 890 Analyzer instruction materials are available. Contact
Customer Service or the local representative to order.
748460 Instruction Manual (this document)

PREFACE
January 2000 Rosemount Analytical
748460-A P-7
COMPLIANCES
MODEL 890 SO2ANALYZER
The Model 890 SO2Analyzer is intended for sampling only non-hazardous gases in
non-hazardous locations. When equipped with the optional Type Z Purge Kit (PN
624446), this analyzer is approved for use in Class I, Division 2, Groups B, C, and D
hazardous locations and use indoor non-hazardous locations when sampling
flammable gases.
Rosemount Analytical has satisfied all obligations from the European Legislation to
harmonize the product requirements in Europe.
This product complies with the standard level of NAMUR EMC. Recommendation (May
1993).
This product satisfies all obligations of all relevant standards of the EMC framework in
Australia and New Zealand.
MODEL 890 Cl2ANALYZER
The Model 890 Cl2Analyzer is intended for sampling only non-hazardous gases in
non-hazardous locations. When equipped with the optional Type Z Purge Kit (PN
624446), this analyzer is approved for use in Class I, Division 2, Groups B, C, and D
hazardous locations and use indoor non-hazardous locations when sampling
flammable gases.
APPROVED
FM
NAMUR
N96
97-C209

PREFACE
Rosemount Analytical January 2000 748460-A
P-8
NOTES

INTRODUCTION
Rosemount Analytical
748460-A January 2000 1-1
1.1 GENERAL DESCRIPTION
The Model 890 Ultraviolet Analyzer is designed to determine continuously the
concentration of the component of interest in a flowing gaseous mixture. The analyzer
is capable of measurement in the 50 to 5,000 ppm range for SO2and 100 to 5,000
ppm for Cl2.
FIGURE 1-1. MODEL 890 ANALYZER
OPTICAL BENCH
The ultraviolet source emits a pulsed (30 Hz) beam of energy. This energy is split by a
beam splitter, each beam being directed to pairs of detectors before and after the
sample cell.
One of the unique features of the Model 890 is the use of spectrally selective,
“Transflectance”© mirrors. These mirrors isolate the sample and reference spectral
passbands for the detectors. They reflect energy below a wavelength region and

INTRODUCTION
Rosemount Analytical 748460-A January 2000
1-2
transmit the remaining, higher wavelengths, all with much lower energy loss than the
more commonly used bandpass interference filters.
Four detectors are used in this system, two before the sample cell (sample before [Sb]
and reference before [Rb]) and two after (sample after [Sa] and reference after [Ra]).
Sband Sareceive energy in the specific wavelength regions depending on the
application (265 to 310 nm for SO2, 310 to 355 nm for Cl2), Rb and Rain the 310 to 355
nm region for SO2and 355 to 400 nm for Cl2.
These four detectors measure the component of interest (COI) concentration and
correct for NO2interference and UV lamp fluctuations. The difference between
detector determinations is the COI concentration, following this formula:
COI = [f(Rb)-Sb]-[f(Ra)-Sa]
where:
Ra, Rb, Sa, Sb = signals from those detectors so identified
f = attenuation factor for the reference signal, adjusted to compensate for NO2
interference.
The sample gas is introduced to the sample cell, and the COI absorbs ultraviolet
energy in proportion to the concentration in the gas. The difference between the
signals of the detectors located at both ends of the sample cell determines the
concentration of COIin the sample.
FIGURE 1-2. MODEL 890 OPTICAL BENCH
R
a
DETECTORS
MIRRORS
TRANSFLECTANCE©
MIRRORS
DETECTORS
MIRROR
TRANSFLECTANCE©
MIRRORS
SAMPLE CELL
UV LAMP
BEAM SPLITTER
S
a
S
b
R
b

INTRODUCTION
January 2000 Rosemount Analytical
748460-A 1-3
Additionally, the adjacent (non-COI-absorbing) reference wavelengths are used as a
baseline for measurement and correction of sample interferent components,
particularly NO2.
Readout is on a 16-character, LED-backlighted liquid crystal display. COI
concentration data is presented in parts per million, percent of composition, or percent
of fullscale. Additionally, 0 to +5 VDC output for a potentiometric (voltage) recorder
and 0 to 20 mA or 4 to 20 mA isolated current output (maximum load 700 ohms) are
provided as standard.
A case heater with fan assembly maintains proper operating temperature.
LINEARIZATION
A linearizer, based on a fourth-order polynomial, is incorporated in the electronic
circuitry. By turning the linearizer ON and entering the correct coefficients, an output
linear with concentration is obtained.
1.2 AVAILABLE OPTIONS
Operation of the Model 890 can be enhanced with the choice of several options:
DUAL ALARMS (STANDARD AND FAIL-SAFE)
User-set dual alarms are available with configurable HI/LO designations and
deadband.
AUTO ZERO/SPAN
An Automatic Zero/Span Option is available for unattended calibration of all three
ranges.
CALIBRATION GAS CONTROL
A Calibration Gas Control Option allows two solenoids to be remotely actuated from
the front panel, enabling one-man calibration without leaving the analyzer.
REMOTE RANGE I/O
An optional remote range input/output is available.
AIR PURGE KIT
Air purge kit, when installed with user-supplied components, meets Type Z
requirements of standard ANSI/NFPA 496-1993 for installation in Class I, Division 2
locations as defined in the National Electrical Code (ANSI/NFPA 70) when sampling

INTRODUCTION
Rosemount Analytical 748460-A January 2000
1-4
nonflammable gases. If the analyzer is used to sample a flammable gas, it must be
protected by a continuous dilution purge system per standard ANSI/NFPA 496-1993,
Chapter 6, or IEC publication 79-2-1983, Section Three. (Consult factory for further
information.)